2 edition of Erosion on arable land in Ntondozi area found in the catalog.
Erosion on arable land in Ntondozi area
Bart Van Baarsen
by Social Science Research Unit, University of Swaziland in Kwaluseni, Swaziland
Written in English
Includes bibliographical references (p. 21-22).
|Statement||by Bart van Baarsen, Leonard Ndlovu.|
|Series||Research paper ;, no. 21, Research paper (University of Swaziland. Social Science Research Unit) ;, 21.|
|LC Classifications||S625.S77 V36 1989|
|The Physical Object|
|Pagination||34 p. :|
|Number of Pages||34|
|LC Control Number||88981010|
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Erosion on the arable land with slopes greater than %. It consists of cultivation on the It consists of cultivation on the slope, parallel to the level curves row crop s on land strips. Global Perspective of Arable Soils and Major Soil. The world has lost a third of its arable land due to erosion or pollution in the past 40 years, with potentially disastrous consequences as global demand for food soars, scientists have warned.
Rural land area where elevation is below 5 meters (% of total land area) Urban land area where elevation is below 5 meters (% of total land area) Land area (sq. km).
Of the total, 25% of land area is highly degraded, 8% moderately or slightly degraded, 36% stable and 10% improving (FAO-State of the World's Land and Water Resources for Food and Agriculture. Soil erosion also leads to lower crop productivity because of loss of water, organic matter and soil nutrients.
A 50% reduction in soil organic matter has been found to reduce corn yields by 25%. for soil erosion affecting a single area of more than 1 hectare for poaching on a stretch of land (at least 2m wide and 20m long) next to an inland freshwater or coastal water.
Learn land use with free interactive flashcards. Choose from different sets of land use flashcards on Quizlet. InDavid Pimentel of Cornell University in Ithaca, N.Y., reported in Science that the world had lost nearly one third of its arable land over the past 40 years due to unsustainable farming.